/**
 * Controller is the hub of APP. APP is implemented with the Event-Driven-Architecture.
 * Controller is responsible for capturing events and sets the respective callbacks for every events which are triggered
 * throughout APP.
 *
 * @class controller
 */
app.controller = {

	/**
	 It initialises the controller to process the captured events. These events are triggered in various parts of APP
	 and captured by the controller
	 @method initialize
	 **/
	initialize: function () {

		/**
		 Triggered when a server is selected by user
		 @event server:selected
		 @param {String} serverId The name of the selected Server
		 **/
		app.eventBus.subscribe("server:selected", function (serverId) {
			app.controller.serverSelected(serverId);
		});


		/**
		 Triggered when database is retrieved from the Remote API
		 @event databaseList:retrieved
		 **/
		app.eventBus.subscribe("databaseList:retrieved", function () {
			app.view.updateDatabaseListUi(app.databaseList);
		});


		/**
		 Triggered when a Database is selected by user
		 @event database:selected
		 @param {String} databaseUri The URI of the selected Database
		 **/
		app.eventBus.subscribe("database:selected", function (databaseUri) {
			app.collection.getCollectionList(databaseUri);
		});


		/**
		 Triggered when list of Collections is retrieved from backend
		 @event collectionList:retrieved
		 **/
		app.eventBus.subscribe("collectionList:retrieved", function () {
			app.view.updateCollectionListUi(app.collectionList);
		});


		/**
		 Triggered when a Collection is selected by user
		 @event collection:selected
		 @param {String} collectionUri The URI of the selected Collection
		 **/
		app.eventBus.subscribe("collection:selected", function (collectionUri) {
			app.view.showLoader();
			app.collection.getSelectedCollectionData(collectionUri);
		});


		/**
		 Triggered when internal list of the selected Collection is retrieved from backend
		 @event selectedCollectionData:retrieved
		 **/
		app.eventBus.subscribe("selectedCollectionData:retrieved", function () {
			app.collection.getRawData(app.selectedCollectionData);
		});

		/**
		 Triggered when complete RawData of the selected Collection is retrieved from backend
		 @event rawData:retrieved
		 **/
		app.eventBus.subscribe("rawData:retrieved", function () {
			app.view.hideLoader();
			app.collection.getMetadata(app.metadataId);
			//app.utils.dumpPlotData(app.rawData);
		});

		app.eventBus.subscribe("plot:data:retrieved", function () {
			app.view.updatePlotData();
			app.view.updatePlotDataRepeat();
		});
		//getSmallRepeatability();
		//getWifiStatRepeatability();
		//getSigGenRepeatability();

		/**
		 Triggered when Metadata of the selected collection is retrieved from backend
		 @event metadata:retrieved
		 **/
		app.eventBus.subscribe("metadata:retrieved", function () {
			app.view.updateMetadataUi(app.metadata);
		});


		/**
		 Triggered when a Floor Plan is selected by user
		 @event floorPlan:selected
		 **/
		app.eventBus.subscribe("floorPlan:selected", function () {
			app.collection.filterRawDataByFloor(app.rawData);
			app.floor.mapCoordinates(app.filteredRawDataByFloor);
		});


		/**
		 Triggered when coordinates are mapped to the selected Floor Plan
		 @event coordinates:mapped
		 **/
		app.eventBus.subscribe("coordinates:mapped", function () {
			app.view.updateNodeUi(app.filteredRawDataByFloor);
			app.view.updateFloorInfo(app.selectedNodeData);
			app.view.showFloorPanel();
		});


		/**
		 Triggered when a Node in the FloorPlan is selected by user
		 @event node:selected
		 @param {String} selectedNodeId The Id of the selected Node in the FloorPlan
		 **/
		app.eventBus.subscribe("node:selected", function (selectedNodeId) {
			app.collection.getSelectedNodeData(selectedNodeId);
			app.collection.groupNodeDataByChannel(app.selectedNodeData);
			app.view.updateFloorInfo(app.selectedNodeData);
			app.view.updateChannelList(app.channelList);
		});


		/**
		 Triggered when a Channel is selected by user
		 @event channel:selected
		 @param {Integer} selectedChannel The number of the selected channel
		 **/
		app.eventBus.subscribe("channel:selected", function (selectedChannel) {
			app.collection.getSelectedChannelData(selectedChannel);
			app.collection.groupSelectedChannelDataBySsid(app.selectedChannelData);
			app.view.updateAccessPointUi(app.groupedSsidData);
		});


		/**
		 Triggered when an AccessPoint is selected by user
		 @event accessPoint:selected
		 @param {String} selectedSsidData The SSID_BSSID of the selected AccessPoint
		 **/
		app.eventBus.subscribe("accessPoint:selected", function (selectedSsidData) {
			app.collection.processGraphData(selectedSsidData);
			app.view.showGraphPanel();
			app.view.updateGraphInfoUi(app.selectedNodeData.receiver_location);
			app.graph.draw(app.graphData);

		});


	},

	/**
	 It is a callback for an event when a server is selected by user
	 @method serverSelected
	 @param {String} serverId The name of the selected Server
	 **/
	serverSelected: function (data) {
		app.view.clearDatabaseList();
		app.view.clearCollectionList();
		app.view.resetFloorPlanList();
		switch (data) {
			case "server1" :
				app.collection.getDatabaseList(app.dataBaseUriLocal);
				break;
			case "server2" :
				app.collection.getDatabaseList(app.dataBaseUriRemote);
				break;
			case "server3" :
				app.rawData = staticData;
				app.selectedFloorPlan = 'twist2Floor';
				app.floor.mapCoordinates(app.rawData);
				break;
		}
	}

};